The products were produced between Sept. 23 and Nov. 6 and distributed to stores -- including Trader Joe's and Whole Foods -- in Arizona, California, Nevada, New Mexico, Oregon, Texas, Utah and Washington.

Officials say the products affected have the establishment No. P-34221 inside the USDA mark of inspection.

No deaths have been reported, but 26 case-patients have been identified in three states with E. coli patterns. Fifteen of those case-patients reported consumption of ready-to-eat pre-packaged salads prior to illness onset. An investigation later determined Glass Onion Catering was the supplier of the products implicated in the outbreak.

Symptoms of E. coli infection include bloody diarrhea, abdominal cramps, dehydration and in severe cases, kidney failure. Most victims recover within a week; however some may develop complications requiring hospitalization.

Young children and the elderly are at most risk of a potentially life-threatening complications that can include kidney failure. The FDA advised anyone experiencing those symptoms to contact a health care provider.

Glass Onion Catering and FDA are working together on the investigation.

Anyone with information regarding the recall was urged to contact Tom Atherstone, owner of Glass Onion Catering at (510) 236-8905.